JP2002057480A - Cooling unit and display device comprising the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts of a cooling unit and to exhaust in a direction without affecting the exhaust efficiency, even if display devices are put together in vertical and horizontal directions. SOLUTION: There are provided a cooling fan 7 for cooling the interior of the device, a fan holder 8 for fitting the cooling fan 7, and a duct 9 for ventilating the exhaust from the cooling fan 7. The duct 9 comprises a first exhaust path 9a for ventilating the exhaust in the horizontal direction, a second exhaust path 9b for ventilating in the vertical direction, a third exhaust path 9c orthogonal to each of the first and second exhaust paths, and a wind direction plate 10 for directing the exhaust from the cooling fan to any of the first exhaust path 9a, the second exhaust path 9b, and the third exhaust path 9c. The exhaust is exhausted through exhaust ports, corresponding to the horizontal direction, the vertical direction, and the rear-surface direction, while the fan holder 8 and the duct 9 are integrally molded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling unit and a display device provided with the cooling unit.
The present invention relates to a cooling unit that performs forced air cooling for cooling the inside and a display device including the cooling unit.

[0002]

2. Description of the Related Art With the appearance of large and thin plasma displays, expectations for wall-mounted televisions are increasing. In addition, since it is a flat type and large-sized, there are increasing cases where a plurality of plasma displays are arranged on a wall surface by taking advantage of its features. The display unit of a plasma display is considered to be the shortest position as a wall-mounted TV because it is a large and thin flat type, but at present it consumes a large amount of several hundred watts and generates a lot of heat. Therefore, there is a need for a method of efficiently cooling in response to the above. Therefore, a cooling unit that cools the plasma display is desired to be able to exhaust the inside of the apparatus with high efficiency in order to cope with the reduction in the thickness of the display. By the way, when exhausting a thin display unit,
In order to achieve both thinness and high efficiency, a sirocco fan having a high air flow and high static pressure using centrifugal force was used.

[0003] However, the sirocco fan is preferable in terms of its structure because of its thinness, but the exhaust direction is the thin circumferential direction,
That is, the direction is either the left-right direction or the up-down direction of the device to be incorporated, and the direction is limited to either direction depending on the installation method of the cooling fan. When arranging a plurality of display devices in which the exhaust direction is limited in this way, or depending on conditions such as an installation place, the exhaust direction of the cooling fan used for the cooling unit may become a problem. In other words, if there is a wall or ceiling close to the exhaust direction, the efficiency first drops, and if the exhaust direction of the display device is horizontal, the adjacent exhausts will be And the cooling effect is greatly reduced. In addition, when the exhaust direction is the vertical direction, if the display devices are arranged vertically, the exhaust heat of the lower display device affects the upper display device, and the efficiency of the upper display device is extremely reduced. Had.

[0004]

SUMMARY OF THE INVENTION In view of the above-described problems, the present invention has an effect on the exhaust efficiency even when the number of parts related to the cooling unit is reduced and the display devices are arranged vertically and horizontally. It is an object of the present invention to provide a cooling unit capable of exhausting air in a direction not to be performed and a display device including the cooling unit.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a cooling fan for cooling the inside of an apparatus,
A cooling unit comprising: a fan holder for mounting the cooling fan; and a duct for passing exhaust air from the cooling fan, wherein the duct is configured to firstly exhaust air from the cooling fan in a horizontal direction. An exhaust passage, a second exhaust passage through which exhaust air from the cooling fan flows in a vertical direction, and ventilation of exhaust air from the cooling fan through one of the first exhaust passage and the second exhaust passage. And a wind direction plate.

The duct has a third exhaust passage orthogonal to the first exhaust passage and the second exhaust passage, and the first exhaust passage and the third exhaust passage are arranged depending on a position where the wind direction plate is provided. Ventilation is provided to either the second exhaust passage or the third exhaust passage.

The fan holder has a fixing portion for detachably fixing the cooling fan, and the fixing portion is formed integrally with the fan holder.

[0008] The fixing portion comprises a guide post for supporting the cooling fan and guiding the cooling fan when the cooling fan is mounted, and a stopper for preventing the cooling fan from falling off.

The guide post has a projection for preventing the cooling fan from rattling.

[0010] The duct has one surface formed by extending the fan holder, and the first exhaust passage and the second exhaust passage are formed integrally with the fan holder.

The duct has a plurality of engaging portions for arranging the wind direction plate in a predetermined direction at a predetermined position inside the duct and locking the air direction plate to the engaging portion so that the wind direction plate is detachable. Lock.

[0012] The wind direction plate comprises a rib provided integrally with the duct.

The rib has a thin connection portion with the fan holder, and can be cut off when unnecessary.

[0014] The duct has a detachably formed lid for closing the third exhaust passage.

[0015] The lid has a hook for locking the duct, the duct has an engaging portion for locking the hook, and the hook is locked to the engaging portion. The third exhaust passage is closed.

A cooling unit comprising a cooling fan for cooling the inside of the apparatus, a fan holder for mounting the cooling fan, and a duct for passing exhaust air from the cooling fan, and the cooling unit is mounted inside. A display device comprising: a front case; and a rear cover that covers the rear surface of the front case, wherein the cooling unit includes a first exhaust passage that horizontally exhausts the exhaust from the cooling fan to the duct, A second exhaust passage that allows exhaust air from the cooling fan to ventilate in a vertical direction, and a wind direction that causes exhaust air from the cooling fan to flow to one of the first exhaust passage and the second exhaust passage. A plate, and the rear cover has a first exhaust port that exhausts the exhaust gas from the first exhaust passage in a horizontal direction and exhausts the exhaust gas, and exhausts the exhaust gas from the second exhaust passage. A second exhaust port for ventilating and exhausting in a direct direction, and by arranging the wind direction plate at a predetermined position in the duct, exhausting the cooling fan to the first exhaust port. Alternatively, air is exhausted from one of the second exhaust ports.

A cooling unit comprising a cooling fan for cooling the inside of the apparatus, a fan holder for mounting the cooling fan, and a duct for passing exhaust air from the cooling fan, and the cooling unit is mounted inside. A display device comprising: a front case; and a rear cover that covers the rear surface of the front case, wherein the cooling unit includes a first exhaust passage that horizontally exhausts the exhaust from the cooling fan to the duct, A second exhaust passage that vertically ventilates the exhaust from the cooling fan, and a third exhaust passage in which the exhaust from the cooling fan is orthogonal to the first exhaust passage and the second exhaust passage, respectively. A wind direction plate for allowing exhaust air from the cooling fan to flow through one of the first exhaust passage, the second exhaust passage, and the third exhaust passage, The rear cover has a first exhaust port that exhausts exhaust gas from the first exhaust passage in a horizontal direction, a second exhaust port that exhausts exhaust gas from the second exhaust passage in a vertical direction, and A third exhaust port for exhausting exhaust air from the three exhaust passages in a rearward direction, and by disposing the wind direction plate in a predetermined direction at a predetermined position in the duct,
The exhaust from the cooling fan is exhausted from one of the first exhaust passage, the second exhaust passage, and the third exhaust passage.

The cooling fan is a sirocco fan.

[0019]

FIG. 1 is an exploded perspective view of a cooling unit according to an embodiment of the present invention and a display device provided with the cooling unit. Description will be made based on the drawings. The display device 1 is configured to be thin so that a flat display unit 2 such as a plasma display is mounted on a chassis 3 and held by a front case 4 on the front and a rear cover 5 on the back. A drive circuit for driving the panel, a signal processing circuit, a power supply circuit, and the like are dispersedly arranged in the display unit 2 and the chassis 3. Cooling units 6 are provided at the upper left and right sides to exhaust and cool the heat radiation from the display unit 2 and each substrate.

The cooling unit 6 comprises a cooling fan 7 for cooling the inside of the apparatus, a fan holder 8 for mounting the cooling fan 7, and a duct 9 for passing exhaust air from the cooling fan 7. The duct 9 is provided with a first exhaust passage 9a for allowing exhaust air from the cooling fan 7 to flow in a horizontal direction.
And a third exhaust passage 9b in which the exhaust from the cooling fan 7 is perpendicular to the first exhaust passage 9a, and a third exhaust passage 9a orthogonal to the first exhaust passage 9a and the second exhaust passage 9b. Exhaust passage 9c. The rear cover 5 includes an exhaust port 5a corresponding to the first exhaust passage 9a, a second exhaust passage 9
An exhaust port 5b corresponding to b and an exhaust port 5c corresponding to the third exhaust passage 9c are respectively provided on the left and right upper portions of the rear surface, and an intake hole 5d for taking in outside air from the outside is provided at the lower rear portion. .

FIG. 2 is a perspective view for explaining the cooling unit. Description will be made based on the drawings. The fan holder 8 in the cooling unit 6 includes a fixing portion for detachably fixing the cooling fan 7, and the fixing portion is formed integrally with the fan holder 8. The fixing portion guides and positions the cooling fan 7 when the cooling fan 7 is mounted, and includes a guide post 8a that supports four corners and a stopper 8b that prevents the cooling fan 7 from falling off. The guide column 8a
A projection 8c for preventing the cooling fan 7 from rattling is provided. Since the cooling fan 7 is pushed in from above along the guide pillar 8a and is fixed by the stopper 8b, no mounting screw is required, and the cooling fan 7 is held by the projection 8c without play. The cooling fan 7 draws air from a suction port (not shown) on the rear side of the figure, and exhausts the air through a fan exhaust port 7a.
Exhausted in the direction of the arrow.

The duct 9 has a first exhaust passage 9a for allowing exhaust air from the cooling fan 7 to flow in the horizontal direction, and a second exhaust passage 9a in which exhaust air from the cooling fan 7 is perpendicular to the first exhaust passage 9a. A second exhaust passage 9b and a wind direction plate 10 indicated by a broken line for allowing exhaust air from the cooling fan 7 to flow through one of the first exhaust passage 9a and the second exhaust passage 9b. The duct 9 has a fan holder 8 extending therethrough and one surface formed, and a first exhaust passage 9 a and a second exhaust passage 9 b are integrally formed with the fan holder 8. The duct 9 includes a third exhaust passage 9c orthogonal to the first exhaust passage 9a and the second exhaust passage 9b, respectively. The air can be passed through either the second exhaust passage 9b or the third exhaust passage 9c. The duct 9 has a plurality of engaging portions for disposing a wind direction plate therein at a predetermined position in a predetermined direction and locking the wind direction plate so that the wind direction plate is detachably locked to the engaging portion. I have.

The duct 9 has a detachable lid 9d for closing the third exhaust passage 9c. Lid 9
d has a hook 9e for engaging the duct 9; the duct 9 has an engaging hole 9f for engaging the hook 9e; the hook 9e is engaged with the engaging hole 9f; To close the third exhaust passage 9c. When only the first exhaust passage 9a and the second exhaust passage 9b are used, and the third exhaust passage 9c is not used, it is closed by the lid 9d.

FIGS. 3A to 3C are perspective views for explaining the operation of the wind direction plate of the cooling unit. The operation of the wind direction plate will be described based on FIG. 3 and FIG. FIG. 3A shows an example in which the wind direction plate 10 is not used, and the exhaust from the cooling fan 7 passes through the first exhaust passage 9a straight from the fan exhaust port 7a in the direction of the arrow, and the rear cover shown in FIG. 5
The air is exhausted from a first exhaust port 5a provided in the left-right direction.
FIG. 3B uses a wind direction plate 10, and exhaust air from the cooling fan 7 flows from the fan exhaust port 7 a in the direction of an arrow.
, And is bent upward to flow through the upper second exhaust passage 9b to be exhausted from the second exhaust port 5b provided above the rear cover 5 shown in FIG. The wind direction plate 10 includes a first engagement portion 10a provided on the duct 9 and a second engagement portion 10b.
Will be held at both ends.

FIG. 3 (c) uses a wind direction plate 10, and the exhaust air from the cooling fan 7 is bent toward the front after hitting the wind direction plate 10 from the fan exhaust port 7a in the direction of the arrow, so that a third exhaust passage near the front is formed. The air passes through 9c and is exhausted from a third exhaust port 5c provided on the back surface of the rear cover 5 shown in FIG. The end of the wind direction plate 10 is held by a third engaging portion 10c and a fourth engaging portion 10d provided in the duct 9. in this way,
By changing the arrangement and direction of the wind direction plate 10, the cooling fan 7
Since the exhaust direction from the air outlet can be set to any of the horizontal direction, the vertical direction, and the rear direction, the most effective method can be selected according to the installation situation.

FIG. 4 is a top view for explaining the case where the wind direction plate is formed by ribs. This will be described with reference to FIGS. Although the wind direction plate 10 may be provided as a separate component, it may be formed integrally with the duct 9 when the cooling unit 6 is formed, and FIG. 4 shows such a case. When the exhaust air from the cooling fan 7 is directed upward, it may be used as it is, and when exhausted in another direction, the ribs may be cut off. Simply removing the first exhaust port 5
The rib exhausted and cut off from a may be used as the wind direction plate 10 and exhausted from the third exhaust port 5c. Thus, the fan holder 8, the duct 9, and the wind direction plate 10
By integrally forming the cooling unit 6 and the like, the cooling unit 6 having a small number of parts can be obtained. The ribs are connected to the duct 9
Is formed thin, and is thus easily broken off.

[0027]

As described above, the present invention comprises a cooling fan for cooling the inside of the apparatus, a fan holder for mounting the cooling fan, and a duct for passing exhaust air from the cooling fan. The duct has a first exhaust passage for ventilating exhaust gas in a horizontal direction, a second exhaust passage for ventilating in a vertical direction, and a third exhaust passage orthogonal to the first exhaust passage and the second exhaust passage. And a wind direction plate for allowing exhaust air from the cooling fan to flow through any one of the first exhaust passage, the second exhaust passage, and the third exhaust passage. Direction and rear exhaust air are exhausted from the corresponding exhaust ports, and the fan holder and the duct are molded integrally, so the number of components related to the cooling unit is reduced, and the display device is arranged in combination with up, down, left and right Also It is possible to provide a display device including a cooling unit and a cooling unit to allow the exhaust in the direction efficiency is not affected.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a cooling unit according to an embodiment of the present invention and a display device including the cooling unit.

FIG. 2 is an exploded perspective view for explaining a cooling unit of the present invention.

FIGS. 3A to 3C are perspective views for explaining the operation of a wind direction plate at different positions in a cooling unit and a display device including the cooling unit according to the present invention.

FIG. 4 is a top view for explaining formation of ribs of the cooling unit of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Display unit 3 Chassis 4 Front case 5 Rear cover 5a, 5b, 5c Exhaust port 5d Inlet hole 6 Cooling unit 7 Cooling fan 7a Fan exhaust port 8 Fan holder 8a Guide post 8b Stopper 8c Convex part 9 Duct 9a, 9b, 9c Exhaust passage 9d Lid 9e Hook 9f Engagement hole 10 Wind direction plate 10a, 10b, 10c, 10d Engagement portion

Claims (14)

[Claims] A cooling fan for cooling the inside of the device;
A cooling unit comprising: a fan holder for mounting the cooling fan; and a duct for passing exhaust air from the cooling fan, wherein the duct is configured to firstly exhaust exhaust air from the cooling fan in a horizontal direction. An exhaust passage, a second exhaust passage through which exhaust air from the cooling fan flows in a vertical direction, and ventilation of exhaust air from the cooling fan through one of the first exhaust passage and the second exhaust passage. A cooling unit, comprising: a wind direction plate. 2. The duct has a third exhaust passage orthogonal to the first exhaust passage and the second exhaust passage, and the first exhaust passage depends on a position where the wind direction plate is provided. 2. A ventilation system according to claim 1, wherein air flows through one of the passage, the second exhaust passage and the third exhaust passage.
The cooling unit as described. 3. The fan holder according to claim 1, further comprising a fixing portion for detachably fixing the cooling fan, wherein the fixing portion is formed integrally with the fan holder. Cooling unit. 4. The fixing portion comprises a guide post for supporting the cooling fan and guiding the cooling fan when the cooling fan is mounted, and a stopper for preventing the cooling fan from falling off. The cooling unit according to claim 3, wherein: 5. The cooling unit according to claim 4, wherein the guide post includes a projection for preventing the cooling fan from rattling. 6. The duct is formed such that the fan holder is extended and one surface is formed, and the first exhaust passage and the second exhaust passage are formed integrally with the fan holder. The cooling unit according to claim 1, wherein: 7. The duct has a plurality of engaging portions for arranging the wind direction plate at a predetermined position and in a predetermined direction and locking the inside thereof, and attaching and detaching the wind direction plate to and from the engaging portions. 7. The cooling unit according to claim 1, wherein the cooling unit is freely locked. 8. The cooling unit according to claim 1, wherein the wind direction plate comprises a rib provided integrally with the duct. 9. The cooling unit according to claim 8, wherein a connection portion of the rib with the fan holder is formed to be thin and can be cut off when unnecessary. 10. The cooling unit according to claim 2, wherein the duct is provided with a detachably formed lid for closing the third exhaust passage. 11. The lid has a hook for locking the duct, the duct has an engaging portion for locking the hook, and the hook is locked to the engaging portion. The cooling unit according to claim 10, wherein the third exhaust passage is closed. 12. A cooling unit comprising a cooling fan for cooling the inside of the device, a fan holder for mounting the cooling fan, and a duct for passing exhaust air from the cooling fan, and the cooling unit is provided inside. A display device comprising: a front case to be mounted; and a rear cover covering a back surface of the front case, wherein the cooling unit is configured to pass a first exhaust passage for horizontally exhausting the exhaust from the cooling fan to the duct. A second exhaust passage through which exhaust air from the cooling fan flows in a vertical direction, and an exhaust gas from the cooling fan that passes through one of the first exhaust passage and the second exhaust passage. A wind direction plate, wherein the rear cover has a first exhaust port that exhausts air from the first exhaust passage in a horizontal direction and exhausts the exhaust gas, and an exhaust air outlet from the second exhaust passage. A second exhaust port for ventilating and exhausting the air in the vertical direction, by arranging the wind direction plate at a predetermined position in the duct, the exhaust from the cooling fan, the first exhaust A display device provided with a cooling unit, characterized in that air is exhausted from one of a port and the second exhaust port. 13. A cooling unit comprising a cooling fan for cooling the inside of the apparatus, a fan holder for mounting the cooling fan, and a duct for passing the exhaust air from the cooling fan, and the cooling unit inside the cooling unit. A front case to attach,
A display device comprising: a rear cover that covers a rear surface of the front case; wherein the cooling unit includes a first exhaust passage that allows exhaust air from the cooling fan to flow through the duct in a horizontal direction; A second exhaust passage that allows exhaust air to flow in a vertical direction, a third exhaust passage in which exhaust air from the cooling fan is orthogonal to the first exhaust passage and the second exhaust passage, respectively, A wind direction plate that allows the exhaust air to flow through any one of the first exhaust passage, the second exhaust passage, and the third exhaust passage, wherein the rear cover is configured to receive air from the first exhaust passage. A first exhaust port for exhausting exhaust gas in a horizontal direction, a second exhaust port for exhausting exhaust gas from the second exhaust passage in a vertical direction, and exhausting exhaust gas from the third exhaust passage in a rearward direction. With a third exhaust port By arranging the wind direction plate in a predetermined direction at a predetermined position in the duct, the exhaust air from the cooling fan is supplied to the first exhaust passage, the second exhaust passage, and the third exhaust passage. A display device provided with a cooling unit, wherein exhaust is performed from any one of an exhaust passage. 14. A display device comprising a cooling unit according to claim 12, wherein said cooling fan is a sirocco fan.